A One 'n Only Exothermic Perm is the one perm for the firmest, longest lasting curls on normal, tinted and resistant hair. Curls will be strong and defined and easy to manage. The self-heating formula uses gentle heat to provides maximum client comfort and ensures shine and manageability, even on tinted hair. Contains argan oil to help moisturize, revive and nourish dry, damaged hair. Balanced formula is gentle on the hair.